Answer:
Option 2 is true.
Step-by-step explanation:
While meditating in the cave on Mount Hira angel Gabriel addressed him and ordered him to recite the words of Allah.
Although Muhammad was not able to read or write he started reciting the words of God.
This is how he started spreading new religion, known as Islam.
Just for the record 3 and 4 are false, while 5 is true.